<div class="detailmodule_html"><div class="detail-desc-decorate-richtext"><p><strong><span style="font-size:20px">Features:</span></strong><br/>1. [Clear sound] The 80mm large-diameter composite high-pitched crystal magnetic horn is equipped with carbon atom lattice graphene diaphragm to greatly restore the real human voice<br/>2. [clear no whistling] Equipped with IC/CVC dual technology, through acoustic experts to tune the three-tone ratio combined with the principle of frequency shift, greatly reduce the whistling frequency<br/>3. [lithium-ion battery] durable battery life, according to the teacher&#x27;s use frequency of 2 classes per day to calculate the normal full charge can be used for about 2 weeks<br/>4. [Voice loop broadcast] Plug in the memory card /U disk to start the loop playback of lesson preparation recording loop playback, use more worry<br/>5. [Multi-scene application] Suitable for teaching/tour guide/promotion/party, et</p><p><strong><span style="font-size:20px">Parameter:</span></strong><br/>Number of speakers: 2<br/>Output power: 8w<br/>Battery capacity: 2200mAh<br/>SNR: ≥75dB<br/>Frequency response range: 100HZ-20KHZ<br/>Track: Mono<br/>Effective distance: 15 meters<br/>Package include:<br/>1* speaker +1* microphone +1* charging cable +1* lanyard<br/></p></div></div><p><br/></p>